Split ExtensionSystem interface from ExtensionSystemImpl implementation, part 1.

chrome/browser/ui/app_list/search/app_search_provider.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/app_list/search/app_search_provider.h"
 
 #include <string>
 
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/extensions/extension_service.h"
-#include "chrome/browser/extensions/extension_system.h"
 #include "chrome/browser/extensions/extension_util.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/app_list/search/app_result.h"
 #include "chrome/browser/ui/app_list/search/tokenized_string.h"
 #include "chrome/browser/ui/app_list/search/tokenized_string_match.h"
 #include "content/public/browser/notification_details.h"
 #include "content/public/browser/notification_source.h"
 #include "extensions/browser/extension_registry.h"
+#include "extensions/browser/extension_system.h"
 #include "extensions/common/extension.h"
 #include "extensions/common/extension_set.h"
 
 using extensions::ExtensionRegistry;
 
 namespace app_list {
 
 class AppSearchProvider::App {
  public:
   explicit App(const extensions::Extension* extension)
@@ skipping 70 matching lines @@
   AddApps(registry->terminated_extensions());
 }
 
 void AppSearchProvider::Observe(int type,
                                 const content::NotificationSource& source,
                                 const content::NotificationDetails& detaila) {
   RefreshApps();
 }
 
 }  // namespace app_list